Conditional Control structure. Chapter 4, Lab Activities, Long questions.

 Chapter # 4 Conditional Control structure

LAB ACTIVITIES

                              LONG QUESTIONS             

Question 1. Write a program that reads a number and prints its square if it is greater than 10.

Ans:

Program:

#include<stdio.h>

#include<conio.h>

int main(int)

{

            int n;

            printf(“\nEnter a number:”);

            scanf(“%d”, &n);

            if(n>10)

            printf(“\nThe square of %d is %d”, n, n*n);

getch();

}

Output:

Enter a number:12

The square of 12 is 144.

Question 2. Write a program that reads two numbers and prints the larger.

Program:

#include<stdio.h>

#include<conio.h>

int main(int)

{

            int x, y;

            printf(“\nEnter two numbers:”);

            scanf(“%d, &d”, &x,&y);

            if(x>y)

            printf(“\nLarger=x”);

            else

            printf(“\nLarger=y”);

getch();

}

Output:

Enter two numbers:5, 2

Larger=5

Question 3. Write a program that reads a number (n) and prints a message based on its value as given below.

Value of n                                                                  Message to Print

N is greater than zero                                                  It is a positive number

N is less than zero                                                       It is a negative number

N is equal to zero                                                        It is equal to zero

Program:

#include<stdio.h>

#include<conio.h>

int main(int)

{

            int n;

            printf(“\nEnter the value of n:”);

            scanf(“%d, &n”);

            if(n>0)

            printf(“\nIt is a positive number”);

            if else(n<0)

            printf(“\nIt is a negative number”);

            else(n==0)

            printf(“\nIt is equal to zero”);

getch();

}

Question 5. Write a program that reads temperature (t) in Celsius and prints a message as given below.

Temperature                                                 Message to Print

t>35                                                                             It is hot!

t>20, t<35                                                                   Nice Day!

t<20                                                                             It is cold!

Program:

#include<stdio.h>

#include<conio.h>

int main(int)

{

            int t;

            printf(“\nEnter temperature in Celsius:”);

            scanf(“%d, &t”);

            if(t>35)

            printf(“\nIt is hot!”);

            if else((t≤ 20)&&( t≤ 35))

            printf(“\nIt Nice Day!”);

            else(t<0)

            printf(“\nIt is Cold!”);

getch();

}

Conditional Control Structure Lab Activities